1. superlative form of churchy; most resembling, characteristic of, or devoted to a church or religious practice
Usage: informal; often used with a slightly critical or ironic tone

Examples

• Of all the hymns in the collection, that one is the churchliest.
• She wore the churchliest outfit to the service, complete with a hat and gloves.
• His churchliest manner made some people uncomfortable at the casual gathering.
• The churchliest members of the congregation always arrived early.
• That was the churchliest sermon I've heard in years.